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Now showing items 11-20 of 30
Timing, Provenance, And Paleoclimate Implications Of The Cenozoic Eolian Deposition In The Central Rocky Mountains, USA
(Geology, 2014-03-12)
This study applies detrital zircon U-Pb geochronology and sandstone petrography to constrain the timing and provenance of Cenozoic eolian sandstone in the central Rocky Mountains. Four samples, collected at the transition ...
The Effect Of Freshwater Input On δ18o Distribution At The Younger Dryas
(Environmental & Earth Science, 2014-07-14)
The Younger Dryas cooling event (~12.9-11.5 δ18O ka BP) is a recognized example of an abrupt decline of the Atlantic meridional overturning circulation and thus may serve as an analog for expected rapid future climate ...
Predicting Esherichia coli Levels In The Trinity River For Issuing Contact Recreation Warnings In The Dallas-Fort Worth Metroplex
(Environmental & Earth Science, 2014-03-12)
E. coli is an indicator for the potential of waterborne illness. However, tests for E. coli take 18 to 24 hours to produce results. During this time, citizens may be exposed to high levels of bacteria. As contact ...
Chemostratigraphy Of The Austin Chalk And Upper Eagle Ford Shale
(Environmental & Earth Science, 2014-07-14)
A single drill core from La Salle, TX was analyzed for its chemical composition and percent concentration of both major and trace elements in order to understand depositional environments and local tectonic activity of the ...
Characterization Of Exogeous Particale Content: Of Canine Tissue Urban Vs. Rural Inhalation Exposures
(Geology, 2014-07-14)
Exogenous zinc (Zn) is emerging as a serious contaminant in the environment. Yearly deposition of zinc particles line heavily traveled inner city roadways and less traveled rural roadways. Particle size for zinc ranges ...
A Tectonic Reconstruction Of Accreted Terranes Along The Paleo-Pacific Margin Of Gondwana
(Environmental & Earth Science, 2014-07-14)
The southern oceanic margin of Gondwana was nearly 40,000 km long or 24,854.8 miles. The southern margin was the result of the Terra Australis orogen. Spanning 18,000 km or 11,184.7 miles and is proposed as one of the ...
Application Of In-situ Remediation By Using Soil Phosphate Amendments At Three Lead Contaminated Soil Sites (residential Yards) In New Orleans, La.
(Environmental & Earth Science, 2014-12)
Lead (Pb) contamination of soil continues as a threat to public health. The problem exists, in part, due to the abundance of lead in soil in certain contexts which has the potential to cause adverse health effects in ...
Effects Of Climate Change And Perturbation In Biogeochemical Cycles On Oxygen Distribution And Ocean Acidification
(Environmental & Earth Science, 2014-12)
Dissolved oxygen (DO) concentration in the ocean is an important component of the marine biogeochemical cycles. In this study a global oceanic carbon cycle model (HAMOCC 2.0) was used to address how oxygen minimum zones ...
Source Characterization Of African Soils Using Computer Controlled Sem Analysis
(Environmental & Earth Science, 2014-12)
An investigation is underway to determine whether African dust can be chemically distinguished by regions and whether it is developed through Pedogenic or Aeolian processes. A total of 29 dust samples were taken from the ...
Foraminifers Of The Clarita Formation (Wenlock, Silurian), From The Arbuckle Mountains, Oklahoma
(Geology, 2014-12)
The study, identification, and classification of Silurian foraminifers from the Arbuckle Mountains in Oklahoma have attracted little attention since the work of Moreman and Ireland in late 1930's. These authors described ...